Help truck Enclosure for 2 l7 10''

This is the pic showing were the box is going to go. There is about 13 1/2 inches between the two seats. I need help on a box idea to put there for the 2 subs. I was thinking for the bottum sub to be tilted up alittle and for the top sub to be facing straight forward tords the dash. But i dont know i also have to put a kx1200.1 in there to without having it behind the seat if anyone has a sugg on what i can do it will be helpful.